How to validate fields in vaadin made form

Question

I am making a Java project with vaadin. Right now I have a user registration form looking like that:

public class RegistrationComponent extends CustomComponent i         


        

Answer 1

Problem solved, Apparently I wasn't looking deep enough before. Here it comes:

field.addValidator(new StringLengthValidator("The name must be 1-10 letters (was {0})",1, 10, true));

all details here: https://vaadin.com/book/-/page/components.fields.html